<span>Red–green color blindness. ... It is sex-linked: genetic red–green color blindness affects males much more often than females, because the genes for the red and green color receptors are located on the X chromosome, of which males have only one and females have two.</span>
Law of conversation of energy and mass these can't be created or destroyed, but can be converted to another form. The fuel/chemical energy is being converted into heat.
